Table 1.
The Top Four Imaging-Based Variables Ranked by Wilk's λ Value
| Wilk's λ value | Cluster 1 (n = 80) | Cluster 2 (n = 59) | Cluster 3 (n = 68) | Cluster 4 (n = 41) | p | Healthy (n = 61) | |
|---|---|---|---|---|---|---|---|
| J(Total) | 0.317 | 2.48 (↑) | 1.69 (↓) | 1.91 | 1.47 (↓) | <0.001 | 2.05 |
| AirT%(Total) | 0.177 | 5.8 | 8.6 | 8.9 | 29.7 | <0.001 | 7.8 |
| Dh*(sLLL) | 0.123 | 0.338 | 0.269 (↓) | 0.344 | 0.301 (↓) | <0.001 | 0.338 |
| WT*(sRUL) | 0.098 | 0.609 | 0.587 | 0.646 | 0.607 | <0.001 | 0.612 |
Arrows ↑ and ↓ in parentheses denote increase and decrease, respectively, of cluster-mean J(Total) and Dh*(sLLL) in comparison with healthy subjects with a significance level of p < 0.001.
AirT%, air trapping percentage; Dh*, normalized hydraulic diameter; J, Jacobian determinant; sLLL, left lower lobe subset; sRUL, right upper lobe subset; WT*, normalized wall thickness.